Hello and welcome to the Community @SnickersDaBear!
Just to make sure I understand, when you refer to “expanding card view” are you referring to Gallery View? If so, you can customize your cards to show whatever content is most important to your workflow at that time. You can use a lookup field to to pull a PDF or contact information from another table, and then display it on your gallery cards.
Let me know if you have any questions on the above, or if I missed the mark I’d love to try and help further! Also, if this helped answer your question please mark it as the solution :white_check_mark: .